---
title: "Input Token"
description: "Input tokens refer to the individual units of information that are fed into an AI model as part of the
prompt for processing. These tokens
can be words, characters, or subwords, depending on the granularity of
the model. They serve as the basis for the model to understand, analyze, and generate output. The number of
input tokens often determines the computational requirements of the AI model, as more tokens typically
require more processing power."
canonical_url: "https://promptmetheus.com/resources/llm-knowledge-base/input-token"
---

> Index of every page on this site: [llms.txt](https://promptmetheus.com/llms.txt)

Input tokens refer to the individual units of information that are fed into an AI model as part of the
prompt for processing. These [tokens](https://promptmetheus.com/resources/llm-knowledge-base/token)
can be words, characters, or subwords, depending on the granularity of
the model. They serve as the basis for the model to understand, analyze, and generate output. The number of
input tokens often determines the computational requirements of the AI model, as more tokens typically
require more processing power.

Input tokens are subject to the total (input + output) or specific (input only)
[token limit](https://promptmetheus.com/resources/llm-knowledge-base/token-limit).

## Sitemap

See the full [sitemap](https://promptmetheus.com/sitemap.md) for all pages.